package demo4;

public class ArrayUtilTest {
    public static void main(String[] args) {
        int[]arr1={10,20,30,40};
        String str=ArrayUtil.printArr(arr1);
        System.out.println(str);
        double[]arr2={1.2,2.0,5.8};
        double avg=ArrayUtil.GetAverage(arr2);
        System.out.println(avg);
        }
    }
